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Hi,
First, The Analog Discovery 2 is a very handy device and i am very pleased with all the functionality it offers.
I got a problem with my device. The channel one of the wave form generator is not working any more. Here is the full the story. i mixed up the scopes for the signal generator and the oscilloscope and i ended up trying to measure a voltage of about 80v with the scope connected to waveform generator. As a result the device disconnected from my laptop. I noticed my mistake, unplugged the scope and tried to reconnect the device. It does show up in the list of available devices with all values of the register, S/N, state... But once i have clicked on 'select', an error pops with 'communication with the device failed'. I connected an external power supply to Analog D and this device can now be connected to Waveform (?!). If I try to set a sinusoidal signal on the channel one of the waveform generator, it shows either a clipped signal or absolutely nothing depending on the Vpp voltage. Also, their is a spurious 3V drop between ground and the output of the channel 1 To finish, the device warms up very quickely.
Does anyone has an idea how to fix that ? To be honnest, i have made an huge mix-take with the device, do you think that someone at Digilent will agree to have look at the device ?
Edit: Waveform indicates a consumption of 800mA / 4.8V on the AUX power supply, the temp is around 50 °C. Also there is a sound emitted by the device when connected, like a whistling.
Best Regards,
Nicolas

During device opening internal chips are enabled and configured. This results in consumption increases, specially when the 100 MHz clock (PLL) is started. The needed current increases from 100mA to 500mA. In case the USB can't provide enough current the voltage drops below the minimal required for the device to operate and communication fails.
In case you get “Device configuration failed (PLL 1)" or "Communication with the device failed.” error message:
The device needs at least 2W/400mA from USB cable. To satisfy this:
- Try to use different USB cable and computer plug.
- Use the USB plug on the back of the PC, not the one on the front panel.
- Use short cable, do not use long cable or cable extender.
- Use powered USB-hub, avoid un-powered hub.
- Use USB-Y cable to load power from two plugs.
Device not detected by WaveForms:
Open Windows Device Manager then connect the device and wait up to one minute for a device to appear:
- USB Serial Converter, with warning
- Connect the device directly to the computer's USB plug without using external hub.
- Restart the computer.
- Reinstall WaveForms, including the Adept Runtime section.
- USB Serial Converter, without warning
- Restart the computer.
- Reinstall WaveForms, including the Adept Runtime section.
- Other application might have erased the USB controller EEPROM (FT_Prog, programming cable drivers...)
Use the "My device is not listed" button in WaveForms application Device Manager to reprogram the EEPROM.
- Unknown Device
Check the Hardware IDs under device Properties, Details tab
- USBVID_0403&PID_6014
The USB driver is not installed.
- Restart the computer.
- Reinstall WaveForms, including the Adept Runtime section.
- USBVID_0000&PID_0000
Device not identified or malfunction. See "Nothing shows up".
- Nothing shows up:
- Connect the device directly to the computer's USB plug without using external hub.
- Try to use different USB cable and computer plug.
The device or its plug might be damaged.

Hi,
I was using the wavegen to generate 2 sine waves and noted one weird behavior.
- when I changed the amplitude of one channel the other channel also is affected (amplitude and phase)
Before change (2V on each channel)
After change (3V on each channel)
The same behavior occurred on the last stable version and beta version (3.11.4).
Thanks

I want to create a little circuit to connect straight to the analog discovery 2 using an analog multiplexer and some of the digital outputs to enable lower sample rate measurement of multiple channels. Would there be a part number for a suitable mating connector for the inputs and outputs of the analog discovery/analog discovery 2?

HI ,
iam using Analog Discover 2 NI edition, for the first time, i used and measured the RC circuit analysis with Waveform 2015 ,i connected with USB and also external supply also i connected , when i opened digilent waveforms its directly connected and status is OK, then i measured , but all of sudden after its not at all detecting the device, when am selecting the current device in configuration settings its saying the error :DptilO failed ERC:0x2, the device is using by another application .device programming failed .i had used for other PC also saying the same, my Lappy USB serial drivers are also working fine. i connected another analog discovery first version its detected and working fine , but am facing the error when connected with analog Discovery 2 NI edition
i uninstalled waveforms 2015 and again installed, rebooted my windows 8.1, windows 7 , but the same error is comming .DptilO failed ERC:0x2, the device is using by another application .device programming failed.
Kindly help me to sort out he issue
Reagrds
Samuel Christopher
Sr.FAE-Technical

Hello,
I have a first generation Analog Discovery, S/N 210244626692. It recently stopped communicating with my computer. I have tried different USB ports, different cables, and tried a classmate's AD on my computer. The classmate's AD was recognized by Waveforms, but mine was not. Nothing shows up in the Device Manager when my AD is plugged in.
-Nat

Hello,
I ordered a brand new Analog Discovery bundle directly from Digilent a few weeks ago for use in a college class, but every time I have attempted to build a simple circuit and connect the board to WaveForms, I consistently get one of the two attached errors. The components of the parts kit have been working fine but it seems like there is a problem with the amount of power being supplied to the Analog Discovery board itself. Any help would be greatly appreciated.
Thanks,
bucklc2

Dear Digilent Support,
I have erased an EEPROM of FT232H of Analog Discovery (not Analog Discovery 2) due to my mistake. Launching WaveFormus "No supported device detected." is displayed.
Could you tell me the setting of FT_Prog?
Related discussion https://forum.digilentinc.com/topic/2467-analog-discovery-2-ftdi-chip-erased/
Thank you in advance.
Best regards,

I have been following many Analog Discovery users trying to use it in Raspbery Pi and also about the problems.
I've got a little tutorial on how to use Analog Discovery with Orange Pi PC Plus, an excellent alternative to power the system.
https://www.hackster.io/agaelema/using-digilent-analog-discovery-in-orange-pi-pc-plus-b7e865

When I use the waveform generator on my analog discovery 2, the input signal produced has started clipping at around -1.2 or so. I tried it on multiple computers and tried each type and setting and cannot produce correct results. When the amplitude is set to 1V the negative swing does not reach all the way to -1 but the positive swing is correct. When amplitude is greater than 1V it clips on the negative swing. Anyone know what could be wrong?

Hello there!!
I'm trying to do capacitance measurements over the time with a Analog Discovery 2 NI edition and save then, as the code on the image below.
But now, I need to implement 2 things in this script, wich I would like to know if it is possible to.
1) Save the measurements acquired automatically in a file on the computer (like a .txt or anything like that)
2) Make the script change the frequency of the Impedance meter as it run ( for example, acquisition 0 to 4 runs in 10kHz and 5 to 9 runs in 5kHz)
If it is possible, how could I implement that on my script ?
Thanks everyone for the attencion!

Hello,
I've got a question on how to sniff SPI data using Analog Discovery with the WaveForms SDK.
The following example uses "sync record" which only stores samples on SPI clock or select (rising) edge.
This lets you capture SPI data with an average bit rate of around 2MHz. SPI bursts of up to 40MHz are supported but the average rate needs to be lower. DigitalIn_Spi_Spy.py

Hello,
What I would like to do is generate N number of arbitrary signals (regardless of Run time). So I configure digital channel as Custom, I then select Samples to be "N" from which a CSV file contains the N logic signals. I also select the Idle signal as appropriate. Now With Waveform 2015, pattern generator has Wait, Run, Repeat configurations. None of these configuration combinations results in just N logic signals and idle for the remaining duration. They always repeat the generation.
For example, if I select Wait: None, Run: 20ms, Repeat:1 , there is no repetition which is what I want.
But if I select, Wait:None, Run: 200ms (or any higher), Repeat: 1, now the samples repeat. Why would they repeat and how to configure them not to ?

Is there anyone that has a direct link to download just the USB drivers for the Analog Discovery II (not part of Waveforms 2015)?
We are having driver issues on Windows 10. We've tried every other solution that we could find on these forums. (Manually pointing to the drivers, rebooting, reinstalling waveforms including the Adept Runtime, etc.)
We are looking for JUST the drivers that someone from tech support can send us while trying to fix this problem.

Hi,
I am working on a project and I want to incorporate the Discovery for Data Collection. I was wondering is there a way to automate the collection of data using analog discovery so I don't have to launch Waveforms each time to collect data?
My project will only include the Analog Discovery as another puzzle piece, there are other boards and chips that will be connected to the discovery for data collection. Once I collect data I would want to pass it on for processing and interpretation. I am hoping to use Python to control the whole system if possible and make most of the processes automated. Eventually I would want to display results to a user in a graphical form (hence the need for Python)

Using the analog discovery with waveforms 3, it seems like the UART interpreter is telling me things that are incorrect. I could be completely wrong, and maybe I don't know enough about UART framing to tell, but if that's the case let me know, The data stream I am sending is arranged like so: [FF pad byte] - [data(lower 6 + 2 tag bits)] - [FF pad byte] - [data(upper 6 + 2 tag bits)] - [FF pad byte] - [checksum] To get a much better look at the bits, go to: http://s306.photobucket.com/user/Krb686/media/waveforms_uart_bug.png.html?o=0. Then hover over the image at my photobucket, and click the zoom icon that appears in the top right. As you can see, those bits appear to be there, correctly, but the interpreter doesn't seem to think so. Byte 1, the first FF, is recognized successfully. Byte 2, the first data + tag bits, is marked as "Framing Error". From what I understand, framing errors occur when the STOP bit does not occur at the correct time. Clearly however, the STOP is bit is there, as the signal is HIGH where STOP is marked. Byte 3, the second FF, is recognized successfully. Byte 4, the second set of data + tag bits, is marked as "BREAK". What this means, I have no clue. The line drops low after the last FF so why isn't this recognized as a new start bit? I also believe that set of bits is correct. Byte 5, the last FF, is correct. Byte 6, the checksum, is also marked as "BREAK", yet appears to correctly be there. Also, this interpretation is heavily dependent on my time scale. The above image is at 0.01ms/div (20 MHz) At 0.02ms/div (10 MHz), the "BREAK"s go away, and are replaced with framing errors (still, seemingly incorrectly). And you can CLEARLY see that bit #7 in the second packet is a 1, yet the interpreter tells me the value is "h0" Finally 0.05ms/div(4MHz) All the errors are gone, and the 2nd packet is supposedly an h80

Hi, so I am trying to complete a project for one of my classes and I decided to us the script part of the analog discovery; however, there is not enough comments on the code to explain what it is specifically doing. I found an example code that is titled "Wavegenpiano". I would like to know if someone can explain what that code is doing., ie, what each part of the code is doing. I would like to use that code associated with a buzzer to output a song.
TL;DR
How can I use the script part of the analog discovery to have a buzzer output out a sound?

After going through a range of the SDK examples, I'm running into some strange behavior that I'm hoping someone can help explain. The result I'm trying to achieve is sending out a low duty cycle pulse (Digital or Analog but something similar to a TTL) that triggers the repeated acquisition on the Analog Discovery. I can achieve this result using the GUI but would like to insert this process into a python script so I can process and save the data.
When I route W1 into CH1 in the following example what I see is expected. However, when I try to route the digital out into CH1 things look extremely wonky. Again, I'd like to see a waveform that would be considered a PWM waveform that has a duty cycle of ~99% low and I'd like to be able to control that duty cycle with a reasonable degree of precision and accuracy. Any help would be appreciated and hope the solution is easy as I've been staring at this entirely too long. Am I just trying to put too many points into the digital out?
Another potential solution that I'm not entirely sure how to implement, is loading a custom waveform from a file and running that through the waveform generator. Is there an example for that that would also fit with the DAQ needs?
Cheers,
Brian
AnalogIn_Acquisition_5.py

I try to receive data with an Analog Discovery Kit (AD) from a FPGA written with my own protocol. Three signals enter the AD: Clock, Trigger, and Data. At the rising edge of the trigger, I would like to sample 16 bits from the data synchronous to the clock (around 20 Mhz). How can this be done with an AD and SDK? With an FPGA writing this is a matter of minutes, but some how I cannot wrap my head around this. Below is the code I am using, but sadly it returns only 0x0000 or 0x000.
How to receive data in this way?
Cheer,
VonPuffelen
FDwfDigitalInConfigure(AnalogDiscoveryHandle, false, true); // start sampling
STS sts;
unsigned int timer = 0;// wait for receiving
do{
if(!FDwfDigitalInStatus(AnalogDiscoveryHandle, true, &sts)) // pull for trigger event
{
printf("AcquireErro(42)");
return 42;
}
timer++;
}while((sts != stsDone) && (timer < 0x1FFF));
FDwfDigitalInStatusData(AnalogDiscoveryHandle, data, length*sizeof(unsigned short)); // fetch data from IO buffer.
FDwfDigitalInConfigure(AnalogDiscoveryHandle, false, false); // stop sampling

Hello,
For one of my school projects we were asked to find the minimum signal that will give a signal to noise ratio of 10 dB. How would I go about finding this? I know that the Spectrum Analyzer for the Analog Discovery would be used but I am unsure of how to find the signal to noise ratio of a signal.
Thank you,
cjobi247